Animation

Here is the list of courses in Animation:
https://www.shiksha.com/animation/2d-3d-animation/colleges/b-a-colleges-india

You should definitely go with a degree course as doing Diploma doesn't land you with good job opportunities so you should preferably do a degree course and then do Diploma in animation and game designing.
Good luck.

Here's the list:
1. Animation Institute, Ghaziabad
2. Reliance Education - Best VFX & Animation Institute in Noida
3. Picasso Animation College
4. Frameboxx
5. Arena Animation

If you are a student of science stream in +2 then engineering or medical would be better. If you are a student of commerce stream then B.Com or CA will be better. Lastly, if you are from humanities stream then Bachelor of arts in history, sociology or political science is the best option. At last, choose wisely as per your interest and future plans.

You can consider following colleges:
Arena Animation, Noida
APJ Institute of Design
Pearl Academy
Maitreyi College
Live24Media

For B.Tech, you need to clear 10+2 from a recognised board. If you have passed 10+2, then yes, you can apply for B.Tech in computer Science.

You can do any animation course available privately. There is no degree for this career. You have to pursue B.Sc. For this. Or you can have a Diploma in Animation. For Animation you may have to learn some Computer Languages like HTML, CSS, JavaScript etc.